Question

Решите двойное неравенство −2≤x+3≤4

Answer 1

Ответ:

-2≤x+3≤4

-5≤x≤1

x принадлежит [-5;1]

Answer 2

-2 ≤ x + 3 ≤ 4;

-2 - 3 ≤ x + 3 - 3 ≤ 4 - 3;

-5 ≤ x ≤ 1;

x ∈ [-5; 1]